Not just heavy "Grignards": Recent advances in the organometallic chemistry of the alkaline earth metals calcium, strontium and barium

Jacob S. Alexander, Karin Ruhlandt-Senge

Research output: Contribution to journalShort survey

134 Scopus citations

Abstract

Since their initial development in the early 1900's, Grignard reagents have proven to be immensely useful and are among the most common organometallic reagents. The nature of the reagents in solution is complex and depends on substituents, solvent, concentration and temperature. Despite continuing questions about their solid state and solution composition and conformation, organomagnesium reagents find new applications continually. In contrast, little information about the heavier alkaline earth organometallic compounds RMX and R2M (R = alkyl, aryl; M = Ca, Sr, Ba, X = halide) exists. High reactivity due to the predominantly ionic character of the metal-ligand bond and increased lability complicates synthetic access. Recent interest in the organometallic chemistry of the alkaline earth metals calcium, strontium and barium has been sparked by the realization that heavy alkaline earth metal organometallics play unique roles in synthetic applications, such as polymerization initiators and as reagents to modify polymers. As a result, the organometallic chemistry of calcium, strontium and barium has received significant attention over the last few years. This article summarizes recent results in this emerging area of chemistry.

Original languageEnglish (US)
Pages (from-to)2761-2774
Number of pages14
JournalEuropean Journal of Inorganic Chemistry
Issue number11
DOIs
StatePublished - Nov 1 2002

Keywords

  • Barium
  • Calcium
  • Strontium
  • Structural characterization
  • Synthesis
  • σ-bound organometallics

ASJC Scopus subject areas

  • Inorganic Chemistry

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